CVE-2021-4249

7.5 highEPSS 0.8%

High (7.5) in haskell xml-conduit. EPSS 0.8% chance of exploitation in the next 30 days.

A vulnerability was found in xml-conduit. It has been classified as problematic. Affected is an unknown function of the file xml-conduit/src/Text/XML/Stream/Parse.hs of the component DOCTYPE Entity Expansion Handler. The manipulation leads to infinite loop. It is possible to launch the attack remotely. Upgrading to version 1.9.1.0 is able to address this issue. The name of the patch is 4be1021791dcdee8b164d239433a2043dc0939ea. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216204.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-31)
CWE: CWE-404
Published: 2022-12-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

haskell:xml-conduit

References

https://github.com/snoyberg/xml/commit/4be1021791dcdee8b164d239433a2043dc0939ea
https://github.com/snoyberg/xml/pull/161
https://hackage.haskell.org/package/xml-conduit-1.9.1.0
https://vuldb.com/?id.216204
https://github.com/snoyberg/xml/commit/4be1021791dcdee8b164d239433a2043dc0939ea

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